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You searched for: subject:"David Lomet"
[movies]Microsoft Research Video 104670: Rethinking Database Systems for Modern Architectures - Microsoft Research
Computer systems have enjoyed an exponential growth in processor speed for the last 20 years, while DRAM main memory speed improves only moderately. Today a cache miss to main memory takes hundreds of processor cycles, and this gap between processor and DRAM speeds is widening exponentially. Recent database performance studies have pointed out that about 50% or more of the execution time of database systems in main memory is often wasted due to cache misses...
Keywords: Microsoft Research; Microsoft Research Video Archive; David Lomet; Shimin Chen
Downloads: 11
[movies]Microsoft Research Video 103692: Harvesting, Searching, and Ranking Knowledge from the Web - Microsoft Research
There is a trend to advance the functionality of search engines to a moreexpressive semantic level. This is enabled by employing large-scale information extractionof entities and relationships from semistructured as well as natural-language Web sources.In addition, harnessing Semantic-Web-style ontologies and reaching into Deep-Web sourcescan contribute towards a grand vision of turning the Web into a comprehensive knowledgebase that can be efficiently searched with high precision.This talk pres...
Keywords: Microsoft Research; Microsoft Research Video Archive; David Lomet; Gerhard Weikum
Downloads: 28
[audio]Microsoft Research Audio 103692: Harvesting, Searching, and Ranking Knowledge from the Web - Microsoft Research
There is a trend to advance the functionality of search engines to a moreexpressive semantic level. This is enabled by employing large-scale information extractionof entities and relationships from semistructured as well as natural-language Web sources.In addition, harnessing Semantic-Web-style ontologies and reaching into Deep-Web sourcescan contribute towards a grand vision of turning the Web into a comprehensive knowledgebase that can be efficiently searched with high precision.This talk pres...
Keywords: Microsoft Research; Microsoft Research Audio MP3 Archive; David Lomet; Gerhard Weikum
Downloads: 2
[audio]Microsoft Research Audio 104670: Rethinking Database Systems for Modern Architectures - Microsoft Research
Computer systems have enjoyed an exponential growth in processor speed for the last 20 years, while DRAM main memory speed improves only moderately. Today a cache miss to main memory takes hundreds of processor cycles, and this gap between processor and DRAM speeds is widening exponentially. Recent database performance studies have pointed out that about 50% or more of the execution time of database systems in main memory is often wasted due to cache misses...
Keywords: Microsoft Research; Microsoft Research Audio MP3 Archive; David Lomet; Shimin Chen
Downloads: 4
[movies]Microsoft Research Video 103519: Panta Rhei: Database Evolution - Microsoft Research
Panta Rhei---everything is in a state of flux. Evolution impacts Information Systems (IS) at many different levels, we focus on the problem of evolving the data management core of an IS. We present an ongoing activity of collecting and analyzing a large number of evolution histories of real-life IS. The results of this analysis confirm the initial hunch about the severity of the problem, and provide the foundations of a benchmark for tools supporting schema evolution.This work served as a motiva...
Keywords: Microsoft Research; Microsoft Research Video Archive; David Lomet; Carlo Alda Curina
Downloads: 5
[audio]Microsoft Research Audio 103519: Panta Rhei: Database Evolution - Microsoft Research
Panta Rhei---everything is in a state of flux. Evolution impacts Information Systems (IS) at many different levels, we focus on the problem of evolving the data management core of an IS. We present an ongoing activity of collecting and analyzing a large number of evolution histories of real-life IS. The results of this analysis confirm the initial hunch about the severity of the problem, and provide the foundations of a benchmark for tools supporting schema evolution.This work served as a motiva...
Keywords: Microsoft Research; Microsoft Research Audio MP3 Archive; David Lomet; Carlo Alda Curina
Downloads: 3
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